Tractor



FIG. 1 is a first perspective view of the tractor according to the invention;

FIG. 2 is a second perspective view of the tractor of FIG. 1;

FIG. 3 is a front elevation view of the tractor of FIG. 1;

FIG. 4 is a rear elevation view of the tractor of FIG. 1;

FIG. 5 is a left side elevation view of the tractor of FIG. 1;

FIG. 6 is a right side elevation view of the tractor of FIG. 1; and,

FIG. 7 is a top plan view of the tractor of FIG. 1.

The broken line disclosure, as well as line shading in parts of the drawings are included for the purpose of illustrating use and environment and form no part of the claimed design. 

CLAIM The ornamental design for a tractor, as shown and described. 